James g



. converted into superheatd etnia ,stm

aient JAMES G. HAMILTON, OF'CI-IICAG'O, ILLINOIS.

' Leners Paten: No. 87,772, ma March, 16, 1869. v

To whom it my concm Be it known that I, JAMES G. HAMILTON, of Chi-l cago, Oook county, Illinois, have invented certain new and Improvements in Superheated-Steam 'Generatols; and Ido declare that the following is a full, glsr, antg exact descriptioxrhereof, reference being to e accompanying win' makin of this specification, in whichgs, g part Figure 1 is a longitudinal section.

Figure 2, an end view, with the head B partially removed.

Figure 3 is a detached view of deilectors. f

The object of my invention is to so construct superheated-steam generators, that the steam shall be carried, when, and as it is formed, to and along the interior surface of the generator, in a current tending steadily in one direction, that is, from .the point at which the water is delivered, to the point at which the steam inds an outlet, thus causing a constant and rather rapid transmission of heat away from the iron or other metal of which the generator may be made, and so preventing or retarding the injury which the generator would suler om the fire, if the heat were, as it otherwise would be, less constantly, regularly, and rapidly transmitted, or carried off.

To enable others skilled in the art to make and use 'my invention, I'proceed to describe its construction and'A operation. I

A A represent the cylinder and B B', the heads of a manner I s g D represents the pipe, through which the water-is conveyed into the generator, and from which it is injected through numerous small holes, near the end of said pipe, into the chamber G, whereit is instantly steam. s

E sthe outlet pipe, for the steam, and

F, the-blow-o pipe, through which any accumulation of water may be blown olf.

There is no peculiar-ity in the construction of these parts, except` that the openings in D, through which to inect the water'in small jets, are all or nearly all placed near enough the end of the pipe? D, at j, to be within the chamber G. f'

Within the generator, I place two diaphrams or de ilectors, l I, one near each end thereothe diameter of which is somewhat less than that of the interior of the generator," so as to permit the steam to pass from G to H, and from H into the outlet-steam pipe E.

These deiiectors may be made either plane or more or less convex, or somewhat conical. If not plane, the convex surface should be placed toward the steam-outlet E. This is desirable, in respect to a, in order to give suliioient room in the chamber G to receive so much ofthe end of water-pipe D as may be needed to furnish apertures enough for the discharge, into said chamber G, of the requisite quantity of water for the production of steam.

generator, constructed in the' y. In a. generator of fifteen-horse power, the delectors -should be so placed that the edge of each will be near the flange h, and also near the interior surface of the cylinder A A, say about an inch distant, more or less, according to the convenience with which said deflectors may be inserted and secured to the anges h h h h, by means of the stay-bolts or screws e, or in some other suitable manner.

The deilector b is' supported by means of strips of iron or other metal, d, iig. 2, radiating from near the outlet-steam pipe E, to,or near to the flange h, one edge of which strips rests against the inner surface of the end, B, while the dedector rests against the other edge. Other supports may be used for this purpose.

c is an iron, or other metallic tube, surrounding the pipe D, closely fitting between the two dcliectors, and

furnishing a central stay to the deector a.

The water-injecting pipe D passes through both de ectors, the end, j; 'extending into the chamber G formed by and between the deilector a and the end, B', of the generator.

Only into this chamber.G should all or nearly all the water be admitted, and that in small jets, through little h oles in or near the end of said water-injecting pe In this chamber, steam is first formed, as the water is delivered in comminuted jets i'om the pipe D. In

- seeking to escape, it is compelled to travel from the centre of the chamber G, around the outer edges of the dellectors a and b, to reach the outlet-pipe E, thus passing a steady current along the interior surfaces of the head B', the cylinder A A, and the head B, and so rapidly transmitting the heat, and retarding the injury that would'otherwise accrue to the iron from a longer retention of the heat, as before herein set forth.

As generators are now constructed by others, without the deilectors and their appendages, as I have herein set forth, most of the water, it is true, is de; livered near-the ends of the pipe, as at j, yet portions of it are delivered at various points along the pipe D, between the ends or heads B a'nd B.

As soon asformed, the steam naturally seeks to escape by the most direct route to the outlet-pipe E, thus forming no current, or but a slight and irregular one, near or next to the ends and sides of the vessel, which are hence leit to sulier from the retention, for a longer or shorter period, pf heat, which, by means of the apparatus which I have devised, and which I herein describe, would be transmitted regularly and rapidly along the interior surface of the vessel, and away from it, after having performed its oiiice of converting the jets of water or spray into snperheated steam.

Indeed it is believed that much of the steam which is rst formed, as generators are now made by others, remains imprisoned, and more or less inactive, in the parts of the vessel remote from the injeoting-pipe, as long as the machinery continues in motion, much of the more newlyffermed' steam, iirst finding the outlet.

from being nearer thereto, while the old continues to remain in the vessel, to at least a considerable extent.

When the defiectors are but little larger in diameter than the openings in the heads or ends, they may be made and inserted entire, by clipping the outer edges at two opposite points, as shown in iig. 3.

Whcn the opening in the ends of the vessel is relatively mueh smaller than the deeetors, the latter may be made in halves, or smaller fractional parts of Aa circle, and inserted separately, and properly put together within, and secured in a variety of ways, which will readily suggest themselves to a mechanic.

By the use of my improvement, the objections as set forth to the use of the generator, as at present constructed, are obviated.

' specied.

The object of my invention can be partially accomplished by the use of either deflector alone, but I recnmmend the use of both, as more fully awomplishing the object.

Having thus fully described my invention,

What I claim as new, and desire to secure by Letters Patent, is

1. The chamber G, substantially asset forth.

2. The defiectoxs a b, constructed substantially as JAMES G. HAMILTON. 'Witnessesz E. A. WEsT,

L. L. BoND. 

